140 citations · 542 across the 17 of their papers we have counts for
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Optimal Tree Tensor Network Operators for Tensor Network Simulations: Applications to Open Quantum Systems
Weitang Li, Jiajun Ren, Hengrui Yang +2
Tree tensor network states (TTNS) decompose the system wavefunction to the product of low-rank tensors based on the tree topology, serving as the foundation of the multi-layer mult…
Physics-Constrained Hardware-Efficient Ansatz on Quantum Computers that is Universal, Systematically Improvable, and Size-consistent
Xiaoxiao Xiao, Hewang Zhao, Jiajun Ren +2
Variational wavefunction ansätze are at the heart of solving quantum many-body problems in physics and chemistry. Previous designs of hardware-efficient ansatz (HEA) on quantum com…
Efficient Quantum Simulation of Electron-Phonon Systems by Variational Basis State Encoder
Weitang Li, Jiajun Ren, Sainan Huai +3
Digital quantum simulation of electron-phonon systems requires truncating infinite phonon levels into basis states and then encoding them with qubit computational basis. Unary…
Hybrid Quantum-Classical Boson Sampling Algorithm for Molecular Vibrationally Resolved Electronic Spectroscopy with Duschinsky Rotation and Anharmonicity
Yuanheng Wang, Jiajun Ren, Weitang Li +1
Using a photonic quantum computer for boson sampling has been demonstrated a tremendous advantage over classical supercomputers. It is highly desirable to develop boson sampling al…
Non-Markovian Stochastic Schrödinger Equation: Matrix Product State Approach to the Hierarchy of Pure States
Xing Gao, Jiajun Ren, Alexander Eisfeld +1
We derive a stochastic hierarchy of matrix product states (HOMPS) for non-Markovian dynamics in open quantum system at finite temperature, which is numerically exact and efficient.…